Startallback Serial Link Direct

Yes, but only under specific conditions.

Here is why a "serial link" usually fails after a Windows update: startallback serial link

StartAllBack Serial Link is a hypothetical utility and integration feature designed to provide reliable, low-latency serial communication between a legacy device (RS-232/TTL) and modern software environments. It combines a lightweight serial-daemon, cross-platform client libraries, and an optional encrypted tunneling layer to enable device control, logging, firmware update, and automation across local networks and the cloud. Yes, but only under specific conditions

If you love the tool, the safest and most "interesting" path is usually the official one. The developer (Tihiy) offers a lifetime license for a very low price (usually around $5), which supports continued development as Windows 11 continues to change its UI code. cross-platform client libraries